379 lines
12 KiB
Bash
Executable File
379 lines
12 KiB
Bash
Executable File
#!/bin/bash
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#
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# .---. . .
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# | | |
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# |--- .--. .-. .-. .-.| .-. .--.--. |.-. .-. .--. .-.
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# | | (.-' (.-' ( | ( )| | | | )( )| | (.-'
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# ' ' --' --' -' - -' ' ' -' -' -' ' - --'
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#
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# Freedom in the Cloud
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#
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# Used to enable or disable batman mesh protocol on wlanX
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#
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# License
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# =======
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#
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# Copyright (C) 2015-2016 Bob Mottram <bob@freedombone.net>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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PROJECT_NAME='freedombone'
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COMPLETION_FILE=/root/${PROJECT_NAME}-completed.txt
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HOTSPOT_PASSPHRASE='mesh'
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source /usr/share/${PROJECT_NAME}/utils/${PROJECT_NAME}-utils-wifi
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if [[ $1 == "start" ]]; then
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# install avahi
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sed -i "s|#host-name=.*|host-name=$(hostname)|g" /etc/avahi/avahi-daemon.conf
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sed -i "s|host-name=.*|host-name=$(hostname)|g" /etc/avahi/avahi-daemon.conf
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sed -i "s|use-ipv4=.*|use-ipv4=yes|g" /etc/avahi/avahi-daemon.conf
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sed -i "s|use-ipv6=.*|use-ipv6=no|g" /etc/avahi/avahi-daemon.conf
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sed -i "s|#disallow-other-stacks=.*|disallow-other-stacks=yes|g" /etc/avahi/avahi-daemon.conf
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sed -i "s|hosts:.*|hosts: files mdns4_minimal dns mdns4 mdns|g" /etc/nsswitch.conf
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fi
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# Mesh definition
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WIFI_SSID='mesh'
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if [ -f $COMPLETION_FILE ]; then
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if grep -q "WIFI_SSID:" $COMPLETION_FILE; then
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WIFI_SSID=$(cat $COMPLETION_FILE | grep "WIFI_SSID:" | awk -F ':' '{print $2}')
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fi
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sed -i "s|WIFI_SSID:.*|WIFI_SSID:${WIFI_SSID}|g" $COMPLETION_FILE
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fi
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CELLID='any'
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CHANNEL=2
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if [ -f $COMPLETION_FILE ]; then
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if grep -q "Wifi channel:" $COMPLETION_FILE; then
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CHANNEL=$(cat $COMPLETION_FILE | grep "Wifi channel:" | awk -F ':' '{print $2}')
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fi
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sed -i "s|Wifi channel:.*|Wifi channel:${CHANNEL}|g" $COMPLETION_FILE
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fi
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ZERONET_PORT=15441
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IPFS_PORT=4001
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TOX_PORT=33445
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TRACKER_PORT=6969
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LIBREVAULT_PORT=42345
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TAHOELAFS_PORT=50213
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# Ethernet bridge definition (bridged to bat0)
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BRIDGE=br-mesh
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BRIDGE_HOTSPOT=br-hotspot
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IFACE=
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IFACE_SECONDARY=
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EIFACE=eth0
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WLAN_ADAPTORS=$(count_wlan)
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if [ $WLAN_ADAPTORS -eq 0 ]; then
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echo $'No wlan adaptors found'
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exit 0
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fi
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update_wifi_adaptors
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if [ ! $IFACE ]; then
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echo $'No wlan adaptor'
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exit 0
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fi
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if [ -e /etc/default/batctl ]; then
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. /etc/default/batctl
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fi
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function global_rate_limit {
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if ! grep -q "tcp_challenge_ack_limit" /etc/sysctl.conf; then
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echo 'net.ipv4.tcp_challenge_ack_limit = 999999999' >> /etc/sysctl.conf
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else
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sed -i 's|net.ipv4.tcp_challenge_ack_limit.*|net.ipv4.tcp_challenge_ack_limit = 999999999|g' /etc/sysctl.conf
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fi
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sysctl -p -q
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}
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function status {
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batctl o
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}
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function stop {
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if [ -z "$IFACE" ]; then
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echo 'error: unable to find wifi interface, not enabling batman-adv mesh'
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return
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fi
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if [ "$EIFACE" ]; then
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brctl delif $BRIDGE bat0
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brctl delif $BRIDGE $EIFACE
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ifconfig $BRIDGE down || true
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brctl delbr $BRIDGE
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ifconfig $EIFACE down -promisc
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fi
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if [ $IFACE_SECONDARY ]; then
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systemctl stop hostapd
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brctl delif $BRIDGE_HOTSPOT bat0
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ifconfig $BRIDGE_HOTSPOT down || true
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brctl delbr $BRIDGE_HOTSPOT
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fi
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avahi-autoipd -k $BRIDGE
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avahi-autoipd -k $IFACE
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ifconfig bat0 down -promisc
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batctl if del $IFACE
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rmmod batman-adv
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ifconfig $IFACE mtu 1500
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ifconfig $IFACE down
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iwconfig $IFACE mode managed
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iptables -D INPUT -p tcp --dport $TRACKER_PORT -j ACCEPT
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iptables -D INPUT -p udp --dport $TRACKER_PORT -j ACCEPT
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iptables -D INPUT -p tcp --dport 80 -j ACCEPT
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iptables -D INPUT -p udp --dport 80 -j ACCEPT
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iptables -D INPUT -p tcp --dport 548 -j ACCEPT
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iptables -D INPUT -p udp --dport 548 -j ACCEPT
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iptables -D INPUT -p tcp --dport 5353 -j ACCEPT
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iptables -D INPUT -p udp --dport 5353 -j ACCEPT
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iptables -D INPUT -p tcp --dport 5354 -j ACCEPT
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iptables -D INPUT -p udp --dport 5354 -j ACCEPT
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iptables -D INPUT -p tcp --dport $ZERONET_PORT -j ACCEPT
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iptables -D INPUT -p udp --dport $ZERONET_PORT -j ACCEPT
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iptables -D INPUT -p tcp --dport $IPFS_PORT -j ACCEPT
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iptables -D INPUT -p udp --dport $IPFS_PORT -j ACCEPT
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iptables -D INPUT -p tcp --dport $TOX_PORT -j ACCEPT
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iptables -D INPUT -p udp --dport $TOX_PORT -j ACCEPT
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iptables -D INPUT -p tcp --dport $LIBREVAULT_PORT -j ACCEPT
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iptables -D INPUT -p udp --dport $LIBREVAULT_PORT -j ACCEPT
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iptables -D INPUT -p tcp --dport $TAHOELAFS_PORT -j ACCEPT
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systemctl restart network-manager
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}
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function verify {
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tempfile="$(mktemp)"
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batctl o > $tempfile
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if grep -q "disabled" $tempfile; then
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echo $'B.A.T.M.A.N. not enabled'
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rm $tempfile
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stop
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exit 726835
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fi
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echo $'B.A.T.M.A.N. is running'
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rm $tempfile
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}
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function assign_peer_address {
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for i in {1..6}; do
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number=$RANDOM
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let "number %= 255"
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octet=$(echo "obase=16;$number" | bc)
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if [ ${#octet} -lt 2 ]; then
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octet="0${octet}"
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fi
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if [ $i -gt 1 ]; then
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echo -n ":"
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fi
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echo -n "${octet}"
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done
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echo ''
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}
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function start {
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if [ -z "$IFACE" ] ; then
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echo 'error: unable to find wifi interface, not enabling batman-adv mesh'
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exit 723657
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fi
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echo "info: enabling batman-adv mesh network $WIFI_SSID on $IFACE"
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systemctl stop network-manager
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sleep 5
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# remove an avahi service which isn't used
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if [ -f /etc/avahi/services/udisks.service ]; then
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sudo rm /etc/avahi/services/udisks.service
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fi
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global_rate_limit
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# Might have to re-enable wifi
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rfkill unblock $(rfkill list|awk -F: "/phy/ {print $1}") || true
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ifconfig $IFACE down
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ifconfig $IFACE mtu 1532
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ifconfig $IFACE hw ether $(assign_peer_address)
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iwconfig $IFACE enc off
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iwconfig $IFACE mode ad-hoc essid $WIFI_SSID channel $CHANNEL
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sleep 1
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iwconfig $IFACE ap $CELLID
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modprobe batman-adv
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batctl if add $IFACE
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ifconfig $IFACE up
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avahi-autoipd --force-bind --daemonize --wait $IFACE
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ifconfig bat0 up promisc
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#Use persistent HWAddr
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ether_new=$(ifconfig eth0 | grep HWaddr | sed -e "s/.*HWaddr //")
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if [ ! -f /var/lib/mesh-node/bat0 ]; then
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mkdir /var/lib/mesh-node
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echo "${ether_new}" > /var/lib/mesh-node/bat0
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else
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ether=$(cat /var/lib/mesh-node/bat0)
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ifconfig bat0 hw ether ${ether}
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fi
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if [ "$EIFACE" ] ; then
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brctl addbr $BRIDGE
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brctl addif $BRIDGE bat0
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brctl addif $BRIDGE $EIFACE
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ifconfig bat0 0.0.0.0
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ifconfig $EIFACE 0.0.0.0
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ifconfig $EIFACE up promisc
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ifconfig $BRIDGE up
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avahi-autoipd --force-bind --daemonize --wait $BRIDGE
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fi
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if [ $IFACE_SECONDARY ]; then
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if [[ $IFACE != $IFACE_SECONDARY ]]; then
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if [ -d /etc/hostapd ]; then
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# bridge between mesh and wifi hotspot for mobile
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HOTSPOT_NAME=$"${WIFI_SSID}-hotspot"
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ifconfig $IFACE_SECONDARY down
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ifconfig $IFACE_SECONDARY mtu 1500
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ifconfig $IFACE_SECONDARY hw ether $(assign_peer_address)
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iwconfig $IFACE_SECONDARY enc open
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iwconfig $IFACE_SECONDARY mode managed essid $HOTSPOT_NAME channel ${CHANNEL}
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iwconfig $IFACE_SECONDARY ap $CELLID
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brctl addbr $BRIDGE_HOTSPOT
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brctl addif $BRIDGE_HOTSPOT bat0
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brctl addif $BRIDGE_HOTSPOT $IFACE_SECONDARY
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ifconfig bat0 0.0.0.0
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ifconfig $IFACE_SECONDARY 0.0.0.0
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sed -i 's|#DAEMON_CONF=.*|DAEMON_CONF="/etc/hostapd/hostapd.conf"|g' /etc/default/hostapd
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echo "interface=${IFACE_SECONDARY}" > /etc/hostapd/hostapd.conf
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echo "bridge=${BRIDGE_HOTSPOT}" >> /etc/hostapd/hostapd.conf
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echo 'driver=nl80211' >> /etc/hostapd/hostapd.conf
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echo "country_code=UK" >> /etc/hostapd/hostapd.conf
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echo "ssid=$HOTSPOT_NAME" >> /etc/hostapd/hostapd.conf
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echo 'hw_mode=g' >> /etc/hostapd/hostapd.conf
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echo "channel=${CHANNEL}" >> /etc/hostapd/hostapd.conf
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echo 'wpa=2' >> /etc/hostapd/hostapd.conf
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echo "wpa_passphrase=$HOTSPOT_PASSPHRASE" >> /etc/hostapd/hostapd.conf
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echo 'wpa_key_mgmt=WPA-PSK' >> /etc/hostapd/hostapd.conf
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echo 'wpa_pairwise=TKIP' >> /etc/hostapd/hostapd.conf
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echo 'rsn_pairwise=CCMP' >> /etc/hostapd/hostapd.conf
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echo 'auth_algs=1' >> /etc/hostapd/hostapd.conf
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echo 'macaddr_acl=0' >> /etc/hostapd/hostapd.conf
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ifconfig $BRIDGE_HOTSPOT up
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avahi-autoipd --force-bind --daemonize --wait $BRIDGE_HOTSPOT
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ifconfig $IFACE_SECONDARY up promisc
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#ifconfig $IFACE_SECONDARY auto-dhcp start
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systemctl start hostapd
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fi
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fi
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fi
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iptables -A INPUT -p icmp --icmp-type echo-request -j ACCEPT
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iptables -A OUTPUT -p icmp --icmp-type echo-reply -j ACCEPT
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iptables -A INPUT -p tcp --dport $TRACKER_PORT -j ACCEPT
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iptables -A INPUT -p udp --dport $TRACKER_PORT -j ACCEPT
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iptables -A INPUT -p tcp --dport 80 -j ACCEPT
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iptables -A INPUT -p udp --dport 80 -j ACCEPT
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iptables -A INPUT -p tcp --dport 548 -j ACCEPT
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iptables -A INPUT -p udp --dport 548 -j ACCEPT
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iptables -A INPUT -p tcp --dport 5353 -j ACCEPT
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iptables -A INPUT -p udp --dport 5353 -j ACCEPT
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iptables -A INPUT -p tcp --dport 5354 -j ACCEPT
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iptables -A INPUT -p udp --dport 5354 -j ACCEPT
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iptables -A INPUT -p tcp --dport $ZERONET_PORT -j ACCEPT
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iptables -A INPUT -p udp --dport $ZERONET_PORT -j ACCEPT
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iptables -A INPUT -p tcp --dport $IPFS_PORT -j ACCEPT
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iptables -A INPUT -p tcp --dport $TOX_PORT -j ACCEPT
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iptables -A INPUT -p udp --dport $TOX_PORT -j ACCEPT
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iptables -A INPUT -p tcp --dport $LIBREVAULT_PORT -j ACCEPT
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iptables -A INPUT -p udp --dport $LIBREVAULT_PORT -j ACCEPT
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iptables -A INPUT -p tcp --dport $TAHOELAFS_PORT -j ACCEPT
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systemctl restart avahi-daemon
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verify
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}
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function monitor {
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if [ -z "$IFACE" ] ; then
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echo 'error: unable to find wifi interface, not enabling batman-adv mesh'
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exit 723657
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fi
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stop
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echo "info: monitoring mesh network $WIFI_SSID on $IFACE"
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systemctl stop network-manager
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sleep 5
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global_rate_limit
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# Might have to re-enable wifi
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rfkill unblock $(rfkill list|awk -F: "/phy/ {print $1}") || true
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ifconfig $IFACE down
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ifconfig $IFACE mtu 1532
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ifconfig $IFACE hw ether $(assign_peer_address)
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iwconfig $IFACE enc off
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iwconfig $IFACE mode monitor channel $CHANNEL
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sleep 1
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iwconfig $IFACE ap $CELLID
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modprobe batman-adv
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batctl if add $IFACE
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ifconfig $IFACE up
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horst -i $IFACE
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start
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}
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if ! grep -q "$IFACE" /proc/net/dev; then
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echo 'Interface $IFACE was not found'
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stop
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exit 1
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fi
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case "$1" in
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start|stop|status|monitor)
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$1
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;;
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restart)
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stop
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sleep 10
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start
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;;
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ping)
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batctl ping $2
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;;
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data)
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watch -n1 "batctl s | grep mgmt | grep bytes"
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;;
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ls|list)
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avahi-browse -atl
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;;
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*)
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echo "error: invalid parameter $1"
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echo 'usage: $0 {start|stop|restart|status|ping|ls|list}'
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exit 2
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;;
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esac
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exit 0
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